Gearing.



A. G. G. SALENIUS.

. GEARING. APPLICATION FILED JULY 6, 1911.

Patented June 18, 1912.

om 0 O 3 1 SATE ATEN ()FFICE.

ANDERS GUSTAF GUNNAR SALENIUS, OF STOCKHOLM, SWEDEN, ASSIGNOR TO SEPA-RA'IOR AKTIEBOLAGE'I FAMA, 0F STOCKHOLM, SWEDEN.

GEARING.

Patented June 18, 1912.

Original application filed January 5, 1910, Serial No. 536,490. Dividedand this application filed. July 5,

To all whom it may concern:

Be it known that I, ANDERs GUSTAF GUN- NAR 'SALENIUS, Svedenborgsgatan2, Stockholm, Sweden, have invented certain new and useful Improvementsin Gearing, of which the following is a specification.

This invention relates to improvements in gearing.

The invention will be more particularly described in connection with theaccompanying drawing and will be fully pointed out and ascertained inand by the appended claims.

This application is divided out from my application filed January 5,1910, Serial Number, 536,490.

In the drawing :-Figure 1 is a sectional view of a portion of acentrifugal apparatus. Fig. 2 is a sectional view of a modified form ofmy invention with parts broken away.

Like numerals of reference designate similar parts throughout thedrawing.

As shown, 1 designates the drum, 2 the core or the spindle, 3 the spiralspring, and 4 the pinion.

The thread of the spindle is formed by a resilient strip of material 3spirally wound about the spindle 2 in a manner to mesh with the teeth ofa pinion 4 and be driven thereby.

Referring to Fig. 1, the spiral spring is turnable on the spindle and islocked to it in that direction, in which the same is driven by thepinion engaging the same, but is released from the core or spindle, whenthe pinion is stopped. The spiral spring is not connected to the core orthe spindle at any point, but is kept locked to the same in thatdirection, in which the same is driven by the pinion 4. The lower end ofthe spring forms a ratchet tooth 5 engaging in a ratchet notch 6 in acollar 7 on the core. If the pinion is stopped, the drum will continuein its rotation on account of its momentum, the coacting ratchet memberspermitting disengagement of the spring with the spindle.

It is evident, that the engagement of the driving spindle with thepinion by this arrangement will be yielding and without shocks.

In the form shown in Fig. 2 the thread 3 is secured at its lower end tothe spindle by a screw 8.

Serial No. 636,967.

I claim 1. In combination with a spindle to be driven, a spiral springloosely disposed on said spindle to form a worm, and a driving wormwheel having teeth meshing with winds of said spring to drive thespindle, said spring and spindle having coacting ratchet membersarranged for engagement to lock the spring to the spindle when thelatter is being driven, substantially as described.

2. In combination with a spindle to be driven, a spiral spring rotatableand longitudinally movable on said spindle and forming a worm thereon,and a driving worm wheel having teeth meshing with the winds of saidspring to drive said spindle, said spring and spindle having coactingratchet members arranged for engagement to lock the spring to thespindle when the latter is driven and permit release of the spindle forfree rotation, substantially as described.

3. In combination with a spindle to be driven, a spring loosely disposedon said spindle and forming a worm, and a driving worm wheel havingconnection with the winds of said spring and shifting the samelongitudinally of the spindle in one direction when driving the latter,said spring and spindle having coacting devices arranged to lock thespring on the spindle upon driving thrust being imparted by the wheel,substam tially as described.

4. In combination with a substantially vertically disposed spindle to bedriven, a spiral spring loosely disposed on said spindle and forming aworm and adapted to be shifted downwardly on said spindle, and a drivenworm wheel having teeth meshing with the winds of said spring andshifting the spring longitudinally downwardly on the spindle whendriving the latter, said spring and spindle having coacting devices, atthe lower end of the spring, arranged to lock the spring on the spindleupon driving thrust being imparted by said wheel, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

ANDERS Gll 'lAF GUNNAR SALENIUS.

Witnesses:

MARIA LUNDHLOR,

LEA NORDAHL.

(topics of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents. Washington, D. 0.

